Why should I not hardcode secrets in Node.js?
Because committing secrets to git exposes them to anyone with repo access. Use environment variables with dotenv so secrets live in .env files that are gitignored, never in code.
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More FAQs in Common Mistakes Beginners Make When Starting With Node.js
Usually because of weak JavaScript fundamentals and passive learning. Node.js is JavaScript, so syntax gaps make everything harder. And watching without building means no real skill develops, no matter how many tutorials you watch.
Running heavy synchronous code on the main thread. Node.js is single-threaded, so one blocking operation stops all requests. Understanding which operations are blocking, like synchronous file reads, is a core Node.js skill.
Usually because of unhandled errors. Always handle errors in async code with try/catch or .catch, and add a global error handler. Unhandled errors crash the Node.js process, which is a common beginner mistake.
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